Online Education For Gem Enthusiasts
- 8,741 Members
- 2,277 Articles
- 140 Gemology Businesses
- 153,603 Facebook fans
Ways to Start Your Gemology Education
Join Our Thriving Community
The world's best gem articles, published weekly.
Most Recent Articles
Oval-Cut Diamond Buying Guide: Beyond the Bowtie
Don’t let the bowtie effect keep you from buying an oval-cut diamond. With prices lower than rounds, ovals are also a stylish choice for engagement rings.
How to Grade Fancy Cut Diamonds
Fancy cut diamonds can have any finished shape, except round. These stones have their own grading criteria, in particular regarding proportion and symmetry.
Recutting Diamonds and Colored Gemstones
When is recutting diamonds and other gems worthwhile for a professional gemologist? Learn how to make this determination and avoid potential problems.
Proustite Value, Price, and Jewelry Information
Proustite crystals have magnificent red colors and good brilliance. Although facetable, they’re too soft for jewelry use but highly desired as collector’s gems.
How to Grade Set Gemstones
Gems in jewelry settings can’t be evaluated the same way as loose stones. These guidelines are for gemologists learning to grade set gemstones.
Searching for Diamonds Online — Save With These Tips!
Searching for diamonds online shouldn’t be so complex. Use our recommended parameters to buy the best diamond for your engagement ring — and your wallet!
Become a Gemology Pro
Sign up for a Pro Membership"Becoming a Pro Member of IGS just made good sense for my business. The gemology resources are fantastic, and my profile lets potential customers know I am serious about colored gemstones. And frankly, if I get any exposure to potential customers it's a no-brainer."Paul Bierker, Paul Michael Designs
Jeweler, IGS Pro Member
